HL 3.4 - Infinite geometric series
SL 1.8: Sum of infinite convergent geometric sequences The series we have studied thus far - arithmetic & geometric - have been finite; that is, there is a countable number of terms. A finite arithmetic or finite geometric series will always have a sum that is a specific real number. Since the terms in an arithmetic series increase (or decrease) by a fixed amount (the common difference d ) then the sum of an...